Medicinal Chemistry - Fusion of Traditional and Western Medicine, First Edition


by

Robert E. Smith

DOI: 10.2174/97816080514961130101
eISBN: 978-1-60805-149-6, 2013
ISBN: 978-1-60805-154-0



Indexed in: Scopus, EBSCO.

Medicinal Chemistry - Fusion of Traditional and Western Medicine is a textbook ...[view complete introduction]

Infectious Diseases

- Pp. 399-413 (15)

Robert E. Smith

Abstract

Infectious diseases can be caused by worms, protozoa, fungi, bacteria, viruses and even proteins (prions). Organisms, viruses and prions can be classified by their infectivity, or their ability to enter, survive and multiply in a host. There are seven classes of viruses, based on their DNA or RNA. By number, 90% of the cells in the human body are bacteria. Even though our lives depend on symbiotic bacteria, it is important that they stay in their proper places in our human bodies, or ecosystems. By the mid-1980s strains of S. aureus emerged that were resistant to common antibiotics. The most common bacterial disease is tuberculosis, caused by the Gram positive bacterium called Mycobacterium tuberculosis. Fungi, protozoa and multicellular organisms are eukaryotes and some of them are pathogenic. Multicellular parasites include four species of Schistosoma, a flatworm which causes schistosomiasis, which is second in importance only to malaria, with hundreds of millions infected worldwide. In addition to schistosomiasis, helminths can cause ascariasis, dracunculiasis, elephantiasis, hookworm, lymphatic filiaruasis, onchocersiasis, and trichuriasis.

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